<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>

<body>
    <div style="height:100px;background: red">
        头
    </div>
    <div style="height: 300px;background: yellow">
        身体
    </div>
    <div style="height: 150px;background: blue">
        脚
    </div>
</body>

</html>